DDZ shouldl get 15 to 20 years exhibit life from these animals. By then DDZ should be well established and prosperous, and not feel the need for this type of exhibit.
I hope that you are right.
We would love to make these spaces available for Snow Leopards, Sumatran Tigers and the like. But that isn't going to happen any time soon.
Even IF we do ever achieve ZAA membership, we have been told that we would have to wait between 7 to 10 years to get Sumatrans surplus to the breeding programme. Heaven help us, I could be dead by then! And I haven't been game to ask about Snow Leopards.
So we are learning how to make things happen for ourselves.